Results 21 to 30 of about 311,690 (329)

Synthesis, Acidity Constants and Tautomeric Structure of the Diazonium Coupling Products of 2-(Benzylsulfanyl)-7H-purin-6-one in Its Ground and Excited States

Molecules, 2011
A series of new 8-arylhydrazono-2-(benzylsulfanyl)-7H-purin-6-ones 6 were synthesized, their electronic absorption spectra in different organic solvents of varying polarities were investigated and their acid dissociation constants in both the ground and ...
Hosam A. Saad, Farag M. Altalbawy, Elham S. Darwish, Mosselhi A. Mosselhi   +3 more
doaj   +1 more source

Comparative study and relationship analysis between purine content, uric acid, superoxide dismutase, and growth traits in purebred and crossbred Thai native chickens

Frontiers in Veterinary Science, 2023
The objective was to compare and analyze the relationship between growth, purine content, uric acid, and superoxide dismutase (SOD) in purebred and crossbred Thai native chickens. A total of 300 Thai native chickens were divided into 3 groups.
Veeraya Tantiyasawasdikul, Kitsadee Chomchuen, Wipas Loengbudnark, Vibuntita Chankitisakul, Vibuntita Chankitisakul, Wuttigrai Boonkum, Wuttigrai Boonkum   +6 more
doaj   +1 more source

Biosensor measurement of purine release from cerebellar cultures and slices [PDF]

, 2010
We have previously described an action-potential and Ca2+-dependent form of adenosine release in the molecular layer of cerebellar slices. The most likely source of the adenosine is the parallel fibres, the axons of granule cells. Using microelectrode
Dale, Nicholas, Eason, Robert, Wall, Mark J.   +2 more
core   +3 more sources

Guidelines for purine extraction and determination in foods

Food Frontiers, 2021
With the improvement of living standards over the years, the demand for “delicious food” has been increasing rapidly. Accordingly, the hidden risks associated with these kinds of food have gradually been attracting attention and purines have especially ...
Chuanli Hou, G. Xiao, W. Amakye, Jing Sun, Zhenzhen Xu, Jiaoyan Ren   +5 more
semanticscholar   +1 more source

Influência do nitrogênio degradável no rúmen sobre a degradabilidade in situ, os parâmetros ruminais e a eficiência de síntese microbiana em novilhos alimentados com cana-de-açúcar Ruminal degradable nitrogen for steers fed sugar cane: in situ degradability, ruminal parameters and microbial synthesis efficiency

Revista Brasileira de Zootecnia, 2009
Objetivou-se avaliar o efeito da deficiência de nitrogênio degradável no rúmen (NDR), utilizando como volumoso cana-de-açúcar suplementada com uréia, farelo de soja ou farelo de glúten de milho - 60, sobre a eficiência de síntese microbiana e a ...
Roselene Nunes da Silveira, Telma Teresinha Berchielli, Roberta Carrilho Canesin, Juliana Duarte Messana, Juliano José de Resende Fernandes, Alexandre Vaz Pires   +5 more
doaj   +1 more source

Phosphorylation of purine and pyrimidine nucleosides by isolated rat liver mitochondria [PDF]

, 1975
Formation of 5'-AMP, 5'-GMP, 5'-CMP and 5'UMP was confirmed in isolated rat liver mitochondria incubated with alpha-ketoglutarate, inorganic phosphate, purine nucleoside and pyrimidine nucleoside. Increased incorporation of 32Pi into ATP, GTP and UTP was
Inaba, Kozo, Oda, Takuzo
core   +1 more source

Efficient Biocatalytic Synthesis of Dihalogenated Purine Nucleoside Analogues Applying Thermodynamic Calculations [PDF]

, 2020
The enzymatic synthesis of nucleoside analogues has been shown to be a sustainable and efficient alternative to chemical synthesis routes. In this study, dihalogenated nucleoside analogues were produced by thermostable nucleoside phosphorylases in ...
Giessmann, Robert T., Kaspar, Felix, Klare, Hendrik F. T., Kurreck, Jens, Neubauer, Peter, Paulick, Katharina, Röhrs, Viola, Wagner, Anke, Westarp, Sarah, Yehia, Heba   +9 more
core   +1 more source

Síntese de proteína microbiana e concentrações de uréia em vacas alimentadas com diferentes fontes de proteína Estimation of microbial protein synthesis and urea nitrogen metabolism in lactating dairy cows fed diets supplemented with different protein sources

Revista Brasileira de Zootecnia, 2006
Foram utilizadas 12 vacas Holandesas puras e mestiças, distribuídas em três quadrados latinos 4 x 4, organizados de acordo com os dias em lactação, com o objetivo de avaliar o efeito de diferentes fontes protéicas sobre a síntese, a eficiência de síntese
Douglas dos Santos Pina, Sebastião de Campos Valadares Filho, Rilene Ferreira Diniz Valadares, Edenio Detmann, José Maurício de Souza Campos, Mozart Alves Fonseca, Rafael Monteiro Araújo Teixeira, André Soares de Oliveira   +7 more
doaj   +1 more source

Human de novo purine biosynthesis

Critical reviews in biochemistry and molecular biology, 2020
The focus of this review is the human de novo purine biosynthetic pathway. The pathway enzymes are enumerated, as well as the reactions they catalyze and their physical properties. Early literature evidence suggested that they might assemble into a multi-
V. Pareek, Anthony M. Pedley, S. Benkovic   +2 more
semanticscholar   +1 more source

Metabolic Characterization of Antifolate Responsiveness and Non-responsiveness in Malignant Pleural Mesothelioma Cells

Frontiers in Pharmacology, 2018
Antifolates are a class of drugs effective for treating malignant pleural mesothelioma (MPM). The majority of antifolates inhibit enzymes involved in purine and pyrimidine synthesis such as dihydrofolate reductase (DHFR), thymidylate synthase (TYMS), and
Yuzo Sato, Yuzo Sato, Yuzo Sato, Yuzo Sato, Shiori Matsuda, Shiori Matsuda, Shiori Matsuda, Ami Maruyama, Ami Maruyama, Joji Nakayama, Joji Nakayama, Joji Nakayama, Tomoyuki Miyashita, Tomoyuki Miyashita, Tomoyuki Miyashita, Hibiki Udagawa, Shigeki Umemura, Kazuyoshi Yanagihara, Atsushi Ochiai, Masaru Tomita, Masaru Tomita, Tomoyoshi Soga, Tomoyoshi Soga, Katsuya Tsuchihara, Hideki Makinoshima, Hideki Makinoshima   +25 more
doaj   +1 more source